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[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / flow / LoopingFlowContext.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/flow/LoopingFlowContext.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/flow/LoopingFlowContext.java
index 5034c03..21239c1 100644 (file)
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/flow/LoopingFlowContext.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/flow/LoopingFlowContext.java
@@ -1,39 +1,40 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v0.5 
+ * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v05.html
+ * http://www.eclipse.org/legal/cpl-v10.html
  * 
  * Contributors:
  *     IBM Corporation - initial API and implementation
- ******************************************************************************/
+ *******************************************************************************/
 package net.sourceforge.phpdt.internal.compiler.flow;
 
-import net.sourceforge.phpdt.internal.compiler.ast.AstNode;
-import net.sourceforge.phpdt.internal.compiler.ast.NameReference;
-import net.sourceforge.phpdt.internal.compiler.ast.Reference;
 import net.sourceforge.phpdt.internal.compiler.codegen.Label;
 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
 import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
 import net.sourceforge.phpdt.internal.compiler.lookup.LocalVariableBinding;
 import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
 import net.sourceforge.phpdt.internal.compiler.lookup.VariableBinding;
+import net.sourceforge.phpeclipse.internal.compiler.ast.ASTNode;
+import net.sourceforge.phpeclipse.internal.compiler.ast.Reference;
 
 /**
  * Reflects the context of code analysis, keeping track of enclosing
  *     try statements, exception handlers, etc...
  */
 public class LoopingFlowContext extends SwitchFlowContext {
+       
        public Label continueLabel;
-       public UnconditionalFlowInfo initsOnContinue = FlowInfo.DeadEnd;
+       public UnconditionalFlowInfo initsOnContinue = FlowInfo.DEAD_END;
        Reference finalAssignments[];
        VariableBinding finalVariables[];
        int assignCount = 0;
        Scope associatedScope;
+       
        public LoopingFlowContext(
                FlowContext parent,
-               AstNode associatedNode,
+               ASTNode associatedNode,
                Label breakLabel,
                Label continueLabel,
                Scope associatedScope) {
@@ -46,31 +47,31 @@ public class LoopingFlowContext extends SwitchFlowContext {
                BlockScope scope,
                FlowInfo flowInfo) {
                for (int i = 0; i < assignCount; i++) {
-                       VariableBinding variable;
-                       if ((variable = finalVariables[i]) != null) {
-                               boolean complained; // remember if have complained on this final assignment
-                               if (variable instanceof FieldBinding) {
-                                       if (complained = flowInfo.isPotentiallyAssigned((FieldBinding) variable)) {
-                                               scope.problemReporter().duplicateInitializationOfBlankFinalField(
-                                                       (FieldBinding) variable,
-                                                       (NameReference) finalAssignments[i]);
-                                       }
-                               } else {
-                                       if (complained =
-                                               flowInfo.isPotentiallyAssigned((LocalVariableBinding) variable)) {
-                                               scope.problemReporter().duplicateInitializationOfFinalLocal(
-                                                       (LocalVariableBinding) variable,
-                                                       (NameReference) finalAssignments[i]);
-                                       }
+                       VariableBinding variable = finalVariables[i];
+                       if (variable == null) continue;
+                       boolean complained = false; // remember if have complained on this final assignment
+                       if (variable instanceof FieldBinding) {
+                               if (flowInfo.isPotentiallyAssigned((FieldBinding) variable)) {
+                                       complained = true;
+                                       scope.problemReporter().duplicateInitializationOfBlankFinalField(
+                                               (FieldBinding) variable,
+                                               finalAssignments[i]);
+                               }
+                       } else {
+                               if (flowInfo.isPotentiallyAssigned((LocalVariableBinding) variable)) {
+                                       complained = true;
+                                       scope.problemReporter().duplicateInitializationOfFinalLocal(
+                                               (LocalVariableBinding) variable,
+                                               finalAssignments[i]);
                                }
-                               // any reference reported at this level is removed from the parent context where it 
-                               // could also be reported again
-                               if (complained) {
-                                       FlowContext context = parent;
-                                       while (context != null) {
-                                               context.removeFinalAssignmentIfAny(finalAssignments[i]);
-                                               context = context.parent;
-                                       }
+                       }
+                       // any reference reported at this level is removed from the parent context where it 
+                       // could also be reported again
+                       if (complained) {
+                               FlowContext context = parent;
+                               while (context != null) {
+                                       context.removeFinalAssignmentIfAny(finalAssignments[i]);
+                                       context = context.parent;
                                }
                        }
                }
@@ -81,7 +82,10 @@ public class LoopingFlowContext extends SwitchFlowContext {
        }
 
        public String individualToString() {
-               return "Looping flow context"; //$NON-NLS-1$
+               StringBuffer buffer = new StringBuffer("Looping flow context"); //$NON-NLS-1$
+               buffer.append("[initsOnBreak -").append(initsOnBreak.toString()).append(']'); //$NON-NLS-1$
+               buffer.append("[initsOnContinue -").append(initsOnContinue.toString()).append(']'); //$NON-NLS-1$
+               return buffer.toString();
        }
 
        public boolean isContinuable() {
@@ -89,17 +93,16 @@ public class LoopingFlowContext extends SwitchFlowContext {
        }
 
        public boolean isContinuedTo() {
-               return initsOnContinue != FlowInfo.DeadEnd;
+               return initsOnContinue != FlowInfo.DEAD_END;
        }
 
        public void recordContinueFrom(FlowInfo flowInfo) {
-               if (initsOnContinue == FlowInfo.DeadEnd) {
+
+               if (!flowInfo.isReachable()) return;
+               if (initsOnContinue == FlowInfo.DEAD_END) {
                        initsOnContinue = flowInfo.copy().unconditionalInits();
                } else {
-                       // ignore if not really reachable (1FKEKRP)
-                       if (flowInfo.isFakeReachable())
-                               return;
-                       initsOnContinue.mergedWith(flowInfo.unconditionalInits());
+                       initsOnContinue = initsOnContinue.mergedWith(flowInfo.unconditionalInits());
                };
        }
 
@@ -146,4 +149,4 @@ public class LoopingFlowContext extends SwitchFlowContext {
                        }
                }
        }
-}
\ No newline at end of file
+}